#app, .div {
  width: 100%;
  min-width: 600px;
}

.div-imput {
  width: 100%;
  height: 40px;
}

.div-imput .span {
  padding-right: 20px;
}

.div-imput .input {
  width: 300px;
  padding: 5px;
}

.div-imput .button {
  padding: 5px 10px;
  margin-left: 10px;
  cursor: pointer;
}

.margin-top-15 {
  margin-top: 15px;
}

.list {
  margin-top: 20px;
}

pre {
  outline: 1px solid #ccc;
  padding: 5px;
  margin: 5px;
  min-height: 60px;
}

.pre-div {
  width: 100%;
  min-height: 60px;
  border: 1px solid #eee;
  margin-top: 10px;
  margin-bottom: 20px;
}

.string {
  color: green
}

.number {
  color: darkorange
}

.boolean {
  color: blue
}

.null {
  color: magenta
}

.key {
  color: red
}